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Finding the Fourth Proportional to 56,779.70, 85,169.55 and 34,229.30

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Solution

The fourth proportional to 56,779.70, 85,169.55 and 34,229.30 is: 51,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,779.70 : 85,169.55 = 34,229.30 : x
  2. Step 2: Convert to fraction form
    56,779.70/85,169.55 = 34,229.30/x
  3. Step 3: Cross multiply
    56,779.70x = 85,169.55 × 34,229.30
  4. Step 4: Simplify right side
    56,779.70x = 2,915,294,077.82
  5. Step 5: Solve for x
    x = 2,915,294,077.82/56,779.70
  6. Step 6: Final answer
    x = 51,343.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.